According to officials, a trooper with the Arizona Department of Public Safety had to ram into a car on Loop 101 early on Sunday morning in order to stop a wrong-way driver.
Near Guadalupe in Tempe, a driver was apparently intoxicated as they travelled southward along the northbound lanes of Loop 101.
Officials claimed that in attempt to stop the driver, an undercover trooper struck the wrong-way car.
The driver and the trooper both had minor injuries that required hospitalisation.
